Mechanism for manufacturing pneumatic tires.



1 Patented Feb..7,191i.

s sums-sunny 1. I

. T. SLOPBR. I

MECHANISM FOR MAKUPAGTURING PNEUMATIC TIRES.

APPLICATION FILED AUG.14, 1909.

TgsLoPBR, MECHANISM FOR MAIWPAGTURING PNEUMATIC TIRES.

I APPLICATION FILED AUG.14, 1909.

Patented Feb. 7, 1911.

T. SLOPER. MECHANISM FOR MANUFACTURING PNEUMATIC TIRES.

APPLICATION FILED All L14, 1909.

Patented Feb. 7, 1911.

3 SHEETS-$111112? 3.

Illlllllllllllllllllllll UNITED srnrnsr grnntr or a THOMAS SLOPER, 0F DEVIZES, ENGLAND.

MECHANISM FOR MANUFACTURING PNEUMATIC TIRES.

Specification of Letters Patent.

' Application filed Au g'ust 14, 1909. Serial No. 512,925.

To all wh'o'm it may concern:

Be it known that I, THOMAS SLorER, a

' subject of the King of England, residing at edges of the tire, and which pins are em ployed to anchor the cords to the beads, although theinvention would apply to the manufacture of any'tirc wherein the'material is placed over one or more rows of pins.

As is well known the pins for this purpose are earned by a support or former which is preferably circular in form and is'rota-.

tably mounted. Each pin is held frictiontight in the former and is sufliciently firm to permitthe building up of the tire,

but when thrust is applied to the material built around the pins in the axial direction of that part of the pins which engages the former, these are forced out from the former and the material with the pins therein is thus released. It is found that after laying the, cord or other material of which the cover is to be formed over the pins so that they extendthrough and project beyond the material, it requires to be driven home over the pins, and for this purpose it is necessary to apply pressure to the material close up against the pins, the

thrust being in the direction ofthe axes of that partof the pins that, projects on the side to'which pressure is applied, and the mechanism foreffecting this constitutes one partof this invention. After the .material has been built up on the pins it is-necessary to remove the latter from their support orformer, and the mechanism for doing this has features. III'COIIIHIOliWliDhIlBhKlJ for press ing' the material home upon thepins and constitutes another part'of the invention.-

'. Broadly the invention jconsists'in the employment of a roller Whose lip-or edge is made tobearnpon' the tire, in close prox imity to the pins,-the thrust being applied in a direction approximately parallel. to: that part'of the pins that is disposed on the anism is preferably provided for rotating the roller and thereby causing it .to traverse the material. In the preferred construction. of mechanism for pressing home the material, opposed rollers'are used that press upon the tire While it is upon the former,

one rollerbeing applied on each side of the former. To remove the material from the former a stripper, that is conveniently in the form of a roller, is employed. This is carried on an arm that is adapted to engage a central guide (on the former, so that'by swinging the arm the stripper can be made to travers'ethe edge of the tire.

The stripper isadjustable endwise upon. the

arm and by means of this adjustment pres" sure'in an approximately radial direction is applied to the tire, and thBPins, which hold thetire to the former, are thus dis engaged from the same.

Patented Feb. 7, '1 911%..

In the accompanying. drawingsgwhich illustrate one method of] carrying out this invention :Figure 1 is a side elevation in part sect-ion'of the mechanism for, pressing home the/first layer of material; Fig. 2 is a plan of the same; Fig. 3 is a front elevation of the same Fig. 4 is a sideelevation'of the stripping device as applied to a former,

and-Fig; 5 is a front elevation ofthe' same.

' Like letters indicate like parts throughout the drawings. 1 The mechanism-for pressing; home the macarries a roller B and the otherv a roller B Each roller is fast :uponits spindle and the spindlesiareadapted to be driven by mechanism hereinafter described. The working faces Z) of. the rollers' -B? B are opposedto each other and two other -'rollers B" B which cooperate with the first are disposed.

zt erial is carried upon a portable frame or one beside each of'the rollers-B B These.

rollers B B are carried on obliquely. dis" posed studs ontthe 'fIBQIIiE as shown at l3 Fig. 2, whereon' they -are .-free-,so that these are idle rollers as compared: with the rollers B- B whichIare-driven by their spindles .B, B The operativejportions ofthe Workings faces 5 of the idle rollers are arranged to lie in'the sameplane as the operative por tions of the working faces 51 of the driven side to WlllCllthe thrust-1s appliedand mech-- rollers, but a gap is left between the worki 11g faces oft-he, companion rollers so that each driven roller'cooperates with its idle roller after the manner of a single circumfererr' tially divided roller. Thespindles B, B are carried on arms 0, O respectively that are pivoted one to turn about a pin C in the standard A,-a'nd 'tli'e other abouta pin 'C in the standard. I It will be seen that the pins about which o-these arms swing are below thespindles B,

B but.'parallel with the same so that movement of the arms will bring the rollers B nearer to or farther-from each other. T o 4 vici) trol the arms a spindle C is employed; this'ha s'ja bearing atA in the upper portion "bf; "the standard A and is prevented from fendwisef movement by-collars G The ends he s indle are screw-threaded, one rightandedl y andthe other left-handedlyand eth'readed portions pass through screwreade'd orifices .in' cross pins C C that carried *in' the ends of. the arms C, C are'fre'e to rock therein about axes at On thatend of the spindle B that is o'tefrom'the endavher-eon the roller B mountedis an operating handle D and by turning-this handle the spindle can be r tated. Fast on the same end of the spindle as the handle is a spur. -wheel D which, through the medium of a spur-wheel D (carried by the arm G has operative conv ch' thearin C 'swings so that free move- -i 1nt -of lthearm 'is permitted without inter- {flaring with the 'meshingfof this wheel with thewheel D or a fourth wheel D on the st "dard, The Wheel D. through themeo f 1 a wheelD also on the standard, rative connection with a sixth wheel flhiuh the swinging of the arm C Dtinterfere with the meshing of the l): --witl1.,, the wheel D 'or with' a 5D- on the opposite side of it and car- 'ricdf'by-the arm G. The Wheel D meshes *withga wheel D fasten The spindle of {the rollerB It will thus be'seen that r0- tation of the spindle "B insures correspond ingrotation of the spindle B;

Atfthebaseof he mach'ne a foot plate E is hinged" at 'A' spring E whereof one other end to'the baseo'f thestandard A of 'the machine,' nonnally maintains the foot- :plate of -the.groundasshown in full lines The operation to this machine is as .fol- 'l'ows' Th'e tir'e shown, at F,' Fig. 2, is built up on an'f anfnular .,inandrel or ."former F part of which is shown diagrammatically in- ,cross sectioninthe figure referred to. The

pins F. whereon the tire is built are detach:

"l ably secured injthe sides of theformer be advanced to the rollers if desired, or it ,may be carried on a fixed stand in which .B B, the two pairs of rollers are advanced ht angles" to the axis of the spindle C p tated; This causes the roller B? to'be-rov tated by means of its direct connection-with inaction with athird spur-wheel D The heel' D? is carried by the pin-O about opposite side of the pins to that occupied by he pin; C about which. the arm C endt isconnected with the-foot-pla te and the .55 ,pins so that they come away with the mateand project. beyond the material as shown. The former may be carried on a portable stand similar to that whereon the .rollers B, B are carried, in which case it ma case the rollers are brought-to it when required by wheelin the standard A into such position that the former enters the space between the rollers'B B? which are 'sufiiciently wide apartat the commencement of operations to readily receive it, Having adjusted the standard so that the pins F aline with the space between the rollers B B and toward eachotherby rotating the right and left-hand screw -threaded spindle G; The rotation of this spindle draws the arms 0, 0 together, swinging them about'the pivots C U. The rollers having been so ad uSted as to bear withsufiicient .force upon the material, thefoot-plate E ,is depressed by'thc operator'so that the whole apparatus is rendered ste'ady and the handle D is then roits support and thus each roller traverses the edge of the fabric throughout in close proximity to the pins andfpresses the material home upon the pins. The cooperating rollers B. B rotate upon thcirfixed studs through being in contact with the surface of the material and serve to press home that part of the material which lies on the the'rollers B B -It willfbe understood that this operation can be performed in a very short space of time by this apparatus and after the operation the Wholefmecha nisin can be wheeled away leaving the former free to have a further layer of material-placed thereon. Obviously each pair of rollers operates as one and may be considered as a double or compound roller having opposed lips I) b which'perform their functions on opposite sides of thepins.-

When sufficient material has been built up on the former it has to be detached from the -former by withdrawing the rial. For this purpose the tool shown in 'Figs. 4 and'5 is, em loyed, In Fig. Apart ried ona cent'ral support'GH. This support is provided with a hub G At each side of the f former isdetachably secured a ring 13X being shoivn in the drawing and each ringhas securedfin'i ts periphery 1 30 a series of the pins F already referred to; The former of known construction and therefore need not be further described in the present specification as it constitutes no part of the present lllYPlitlOll. In the drawin the rin G is shown as detached from b C! v extension of the, same. is a handle H".

That 'end of the handle which enters the arm is carried through thelength of the slot H and this part is screw-threaded and engages'the block The handle "is free to turn about its longitudinal EIXlSfiI KllDg a bearing in the arm at H and H A shoulder H on it prevents displacement toward the forked end of the arm and a collar H which lies Within the slot H of the arm prevents displacement in the reverse direction. The arm carries a second handle I thatproje'cts from the arm at right angles to the handle H. The operation of this de= vice is as follows :'After. detachingthe ring w on one side ofthe former the forked end H of the arm is made to engage the hub G of the former, and the'lip 72 of theroller H is brought to bear upon the edge-of the material in close proximity to the ring G, as shown in Fig. 4. The handle Iii is then rotated in such direction as to a dvan'ce the block H farther from the hub G so that the lip h of the roller, and the side of the roller', are made to bear against the material with suil'cient, ,force to displace it, as shown in dotte placement of the material causes a similar displacement of the pins wherebyjhy are? withdrawn from the ring G sutficient-l'yr-to allow the ring to be readily remcivedfl'lo Withdraw all the pins around the -Wl10lG circumference of the former, the arm H is swung upon its forked end so that the roller H traverses the whole edge of the tire and by means of its lip h detachesthe same with the pins F from the former, that is from the' ring Gr which constitutes partof the former. Y

that I claim as my invention and desire to secure by Letters Patent is:

1. ln mechanism for manufacturing tires that are built up ofv lengths of. material looped over pins, the combination of, a roller, a support whereby the tire material is held in such relation to the roller that the v lip or edge of the latter may bear upon the material close to the pins, means for causing the roller to exert pressure against the material in a direction approximately par allel t0 the, axiai line of that part of the lines at f. "Thedispins that is disposed on the side to which thrust is applied, and means for causing the roller to traverse the edge of the tire material beside the pins, substantially as set ferth.

2. ln mechanism for manufacturing tires that are built up of lengths of material looped over pins, the combination of, a roller, a movable supportwhereby the tire material is so presented to the roller that the lip or edge of the latter may bear upon the material close to the. pins,m'eans for effect-- ing relative movement between said roller and support to press the material home upon the pins, and means for causing the-roller to traverse the edge of the tire material-beside I the pins, substantially as set forth. ln mechanism for manufacturing tires that are built up of lengths ofIma-terial looped over pins, the combination of, a roller, a circular rotatable support whereby the tire material is so presented to the roller thatithe lip or edge of the latter'may bear upon the material close to the pins, means for effecting relative movement between the 96 roller and said support so that the material is gripped between them close to the pins, and means for rotating the roller and them by the material on its rotatable support so that the roller traverses the-edge of the-tire material beside the pins, substantially as set' forth. v I

4. In mechanism for manufacturing tires that are built up of lengths of material looped over pins, the combination of, a 100 roller that affords a divided face so that two opposed lips or edges are presented to'the material, a support whereby the tire material is so presented to the roller that'the lips v or edges of the latter may bear upon the 1.05 material close to the pins, means for effecting a relative movement between said roller and support to press the materialhome' upon [the pins, and means for causing the roller to I traverse the edge of the 'tlrem'aterial beside the pins, substantially as set forth.

5. In mechanism for manufacturing tires that are built up of lengths of material looped over pins, the combination of, a

former, two rollers adapted to cooperatev with. said former, theQW orking face of one roller being opposed to that of-the other, means-for moving one of. these rollers toward the other in suchdirection that the working faces are brought nearer-together, imeans for rotating oneof the rollers, and earing connectingthe rollers whereby rotation of one effects rotation of the other, notwithstanding: the variation ofdistance besaid. 1'

6. "In mechanism for manufacturing tires that are built up of lengths'of material looped'over pins, the combination of, a rotatable former, two pressure rollers'the Works 130 tween-them effected bythea'djustment aforep ing face ofone of v'vhich is opposed tothat 'of the other, a pivoted arm whereby one roller is supported, means for swinging this arm to advance its roller toward the opposed roller whereby the tire material that is intro-s duced between the rollers on the rotatable former may be pressed on opposite sides by roller adapt the rollers the relative positions of the parts being such that the rollers bear upon the material close to the pins, meansfor rotatedge ofthe latter may bear upon the tire close to the pins, means for advancing the roller toward the support in such direction that the ii of the roller is thrust against the materi'a upon the support in a direction parallel to the axial line of the sections-of the pins that engage the material, and means for causing the roller to traverse theedge of; the tire" material beside the pins su bsta'n'-' tiallyas set forth. M

- 8.- In'mechanism-for manufacturing tires 'that are built up of lengths of material loopedover pins, the combination of, a removable support for a tire, a roller ada' ted to cooperate with said support whereby the. tire material may be held in such relationto the roller that'the lip or-edge of the latter .to cooperate with said support whereby the tire material may be held in such relation to the rolle'rthat the lip ormay bear upon the tire close to the ins, a

portable frame for the roller, means or advancing the roller on the frame in such 51irection that the lip of' the roller isthrust against the material when presented on the cooperating support in a direction ;parallel to'the axial line of the sections of the pins that engage the material, and means for causing the roller to traverse the edge of the tire material besidethe pins','-substantially as.

set forth.

9. In mechanism for manufacturing. tires that are built up of lengths of'material looped over pins, the combination of, a sup,-

port. for a tire, a rolleradapted to cooperate with said support whereby the'tire material may be held in such relation to-the roller that the lip or edge of the latter may bear .upon' the tire close to the pins, a portable {frame for the roller, means for advancing the roller on the frame in such direction that the lipof the roller is thrust against the material when 'presented'on the cooperating support in "a direction parallel to the axialline of the sections of'thepins that engage the material, means for causingthe roller to traverse the edge of the tire material beside the pins,'a pivoted foot-plate for the portable support, and a yielding control that normally lifts the foot-plate from the ground but permits the latter-to be depressed into contact with the ground substantiallyas; and

forthepurpose set forth. Intestimonywhereof I have signed my name to this specification in the presence of .two subscribing witnesses.

, v THOMAS SLOPER. lVitnesses: A

- H. PARSONS, v W. J. TY'rHERLnIGH. 

